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'2 Sheets-Sheet 1. U. GABON.

DOOR LOCK.

(ModeL) k Patented May 11, 1886.

(ModeL) Patented May 11, 1886.

Miran warns Parent @rricn.

ULRIC GABON, OF ST. THOMAS DE PIERR-EVILLE, QUEBEC, CANADA.

DOOR-LOCK.

SPECIFICATION fanning part'cf Iietters Patent No. 21,728, dated May 11,1886,

Application filed April 30, 1835. Serial No. 163,944. (Modeh) Patentedin (.anaa November 28,1884, No. 20,655.

.To ctZZ whom it may concern:

Be it known that l, ULRIC GABON, a citizen of Canada, residing at St.Thomas de Pierreville, in the county of Yamaska, in the Province ofQuebec, Canada, have invented certain new and useful Improvements inDoor- Loeks, (partly patented in Canada under No. 20,655, bearing dateNovember 28, 1884,) of which the following is a specification.

hilyinvention is embodied in the peculiarlyconstrueted lock herein shownand described; and it eonsists,partly,in the key and the con neetion ofthe lock knobs to their shanks,and partlyin the internal mechanism ofthe lock, all of which is fully hereinafter described, reference beinghad to the annexed drawings, in which- Figure]. is an elevation of theinterior of the lock, showing the operation of the key and bolts. Fig. 2is a section on line is as, Fig. 1. Fig. 3 is a section on line 3 y,same-figure.

. Fig. L is a longitudinal section of the shank of the latch knob orhandle. Fig. 5 is a face view of the holding-barhereinafter described.Fig. 6 is a part outside view of a door having my improved lock, showingpieces covering the key-hole and the knob. Fig. 7 is a per spective viewof the key.

The look here shown developes the principle of throwing locking-boltsout in different directions, so as to project into several of the sidesof the door-frame, by means of gearwheel and racks, as herein shown anddescribed.

A represents the front side, B the bottom side, and O the rear side, ofthe lock-case.

a a a are a series of locking-bolts,which may be projected outward fromthe lock into suitable recesses formed to receive them in the jamb ofthe door.

b is a lockingbolt arranged to slide upward into the door-lintel, and cis a similar bolt, to be thrown downward into the doorsill.

The bolts a are connected by the bar D, to which is attached theinwardly-proj ecting arm (I. On theedge of this arm, as also on theinnerportions of the locking-bolts b and c, toothed racks are formed to meshinto a gearwheel, E,whieh is keyed or otherwise secured on the shank ofthe door knobs or handles, so

that all of the loekingbolts a, b, and 0, unless otherwise prevented,may be moved simultaneously inward or outward by turning the door-knobs.

F is a holding-bar movable endwise in suit able guides, andis for thepurpose of holding ing the locking-bolts out when the door is locked.

G is a tumbler overlying the bar F, pivoted at e to the plate of thelock, and provided with an inivaidly-pi'ojecting lug, f, the use ofwhich is to hold theholdingbar, either inward or outward, as it isthrown by thespring 9 into either of the notches h h in the bar. hen inits outward position the holding-bar is also held i'ronr moving by thebolt H, which slides in a vertical channel, and is held up into therecess h in the holding-bar F by the spring j and 7.: are two wardsformed in the holding bar to take in the wings of the key, which I willnow describe, and which forms an important part of my invention.

Thekey is provided with two wings, H and I, the wing ll beingfixedyuhile the wing l is movable. The stem of the keyis made in twoparts--the hollow stem J, on which the wing H is formed, and the insidestem, K, on which the wing I is formed, and which turns loosely insidethe stem J. An opening is made in the hollow stem J, through which thewing I protrudes. Itis made wide enough to allow the wing to swingaround SllllfiClBlltlY for the purpose for which itis intended. The stemK extends for a short distance out of the stem J, and has the arm Zsecured on its end by thenut m. This arm sweeps over the circulargraduated scale L,whieh is fixed transverselyin the key, as shown, forthe purpose hereinafter stated.

The cover of the key-hole M on the outside of the door is made in thetwo pieces a and 0, which are pivoted tothe door in their outer andupper corners, as shown. They close and are locked together by thearrow-headed boltp, which is fixed in the half-cover 12, en teringbetween two spring-jaws in the halfcover, 0, where it is held untilreleased by pressing the wedge-pointed bolt q between the same two jaws.A series of knobs, 1', similar in appearance to the end of the bolt q isshown on the outside of the half-covers n and 0, for the purposeofdisguising the real means of opening the covers. In a small chamberbetween the casing of the lock and the door a small slide is held by aspring to cover the key-hole, so that an Ordinary key cannot beinserted.

In looking the door the operation of this look is as follows: First, theknob is turned so as to throw all the locking-bolts out. The key is theninserted in the key-hole. The wedge s, on the end of the key, enteringat the side, moves the slide above mentioned aside. The key is thenturned around so that the wing H, by pressing against the foot of thetumbler G, liftsthelug font of the notch h, and the wing H, pressingagainst the innerface of the ward 70, moves the holding-bar outwarduntil it comes against the inner end of the arm (I, which, with all theloekingbolts, has previously been thrown forward by turning thegear-wheel by the knob or handle, as abovedescribed. The lug f thendrops into the notch h, and at the same time the vertical bolt H ismoved by the spring 2' up into the recess h", so that the holding'bar isthereby further held from movi-ngback.

.[n unlocking the door the key is first inserted in the key-hole. Thewings are then opened by turning the arm Z around to the proper point,as indicated on the circular scale L. The key is then turned so that thewing I, by raising the tumber G, lifts the lug f out of the notch h inthe holding-bar. In the meantime the wing H, by raising the outer end ofthe lever M, has drawn the vertical bolt H down out of the recess h. Thebold ing-bar is then thrown back by the continued pressure of the wingsof the key against the inner sides of the wardsj and it until the lugffalls into the notch h. The locking-bolts a, b, and a may then be alldrawn back into the look by simply turning the door-knob.

Another important feature of-my invention is the connection of the dooror lock knobs with their shanks, which is as follows: The gear-Wheel E,above mentioned, is fixed rigidly on a sleeve, 25, in which theknob-shank N is firmly secured. O is the socket of the knob or handle,and through which the shank N passes, and which is prevented fromfalling off said shank by the enlargement to. o is a slide-bolt workingin the socket O and connected with the button 10 on the outside of thesocket, so that it may be moved by it into or out of a notch formed inthe end of the sleeve t. The object of this is that the doorknob may bemade to turn the shank or re- Volve independently on it, as desired.

Having thus described my improved look, what I claim as my inventionis 1. In a lock, in combination with the locking-bolts, a holding-bar,F, provided with notches and movable endwise in suitable guides, thepivoted tumbler provided with the inwardly-projecting lug adapted toengage said notches, and to hold the holdingbar, and the spring forthrowing the said projecting lug of the tumbler into the notches of thebar F, substantially as and for the purpose described.

2. The holding-bar F, provided with a recess, h", in combination withthe bolt H, sliding in a vertical channel, and the spring i. whereby theholding-bar, when in its outward position, is held from moving,substantially as described.

3. In a door-lock, thekey in two parts, consisting of the hollow stem Jand the inside stem, K, and provided with two wings, H and I, H beingfixed upon the said stem J and I movable with the inside stem, K, thearm 6, secured to the stem K, in combination witha graduated pivotedtumbler and holding-bar, whereby when the arm of the key is turned tothe proper point the tumbler is raised out of the holding-bar,substantially as described.

Signed at St. Thomas dc Pierret ille this 6th day of March, 1885.

ULRIC GABON.

In presence of EDOUARD ROULLLARD, Fils, W. O. BoUoHER.

